Kaiyuan Tongbao is an important currency in the Tang Dynasty, with a large circulation and a long history. Kaiyuan Tongbao was actually coined by Tang Dynasty's founding emperor Tang Gaozu Li Yuan in Wude four years ago. Since then, in the Tang Dynasty, except for some special years, various imperial cities have coined "Kaiyuan Tongbao" money. The writing of money style was inscribed by calligrapher Ou Yangxun at that time. It is worth mentioning that Kaiyuan Tongbao was not coined by Li Longji in the heyday of Kaiyuan. "Kaiyuan" is not a year number, which is different from other year number coins we are familiar with. It should have the meaning of "opening up a new era".
Kaiyuan Tongbao is the longest circulating copper coin in Tang Dynasty. It occupies an epoch-making position in the history of Chinese coins. "Kaiyuan" means pioneering a new era and "Tongbao" means passing valuable goods. Before the Tang Dynasty, coins were mostly named for their shape or weight, such as knife coins and weight coins. Since the yuan was opened, they were renamed "Bao", "Tong Bao" and "Yuan Bao". Kaiyuan Tongbao was the first circulation of money and silver during the 290 years of Tang Dynasty rule, and influenced the shape, Qian Wen mode and decimal balance method of coins in China for more than 1,000 years. Kaiyuan Tongbao occupies an epoch-making position in the history of Chinese coins. "Kaiyuan" means a pioneering new era.
Kaiyuan Tongbao, with its moderate scale and proper name, has had a profound impact on the innovation of China's monetary system. It is not only the main currency of the Tang Dynasty, but also a model of copper coins for more than 1,000 years after the Tang Dynasty. Due to the heyday of the Tang Dynasty, a large amount of Kaiyuan Tongbao was cast at that time, but the inventory is still relatively large.
Kaiyuan Tongbao was the most important coin in Song Huizong period, so it was very difficult to copy it. Coin Qian Wen is the Hui Emperor's own book, so it is also the royal book money. This exquisite coin, which combines archaeological value, artistic preservation value and scientific research value, has immediately become a target that coin lovers and coin collectors are very fond of and cherish. Under the impetus of this heat wave, the auction value of its shopping mall has also increased rapidly with the attention of these people, and its rare degree is obvious.